Would love to help, but you need to give us some details of you PC, we need the following info:
What kind of CPU
OS
amount of ram
Video card
Version of Vid card drivers
Version of DirectX
What is the message your seeing.
Most likely your video card is having issues with the OpenGL part of the game
Try getting the latest drivers, for it
good luck
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Not so Rude,
RudeDog
